Microsoft GIF Animator lets you easily create and customize animated GIF files for your Web site.GIF animations are based on the GIF89a file format, which stores timing information to create the illusion of animation like a cartoon "flipbook". With GIF Animator you can make your animations loop, spin, fade in and out; set the size and transparency of your images; and control a wide range of other options. GIF Animator also features automatic or custom palette creation.